How to do Indices?

There are different rules when it comes to indices. First of all we will look at the example of multiplying two expressions . For example, y2 x y4 . Here we need to do the addition rule, so add 2 and 4 to get 6. The answer is y6. Another example is y4 / y2. Here we would need to use the subtraction rule, hence 4-2 is 2. So the answer is y2.Another example is (y3)4. Here there is the use of brackets, where an index is inside as well as outside. So the multiplication method is needed, where you would have to do 3 x 4 which is 12. So the answer is y12.

TH
Answered by Taha H. Maths tutor

3603 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

Denise buys 5 apples and 3 bananas for £3.15. A banana costs 25p more than an apple. How much would it cost to buy 4 apples and 2 bananas?


Prove that (2*a^2 + 7a + 3)/(a + 3) is an odd number for any positive integer number, a.


Write 0.72727272 as a fraction in its simplest form


Express x^2+8x+15 in the form (x+a)^2-b


We're here to help

contact us iconContact ustelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

MyTutor is part of the IXL family of brands:

© 2026 by IXL Learning